MESON Chess Problem Database

Problem Display
PID: 61292 (2brN2b/B7/7R/5pK1/2P1kP2/3p4/4N1P1/1B5n w - - 0 1)

Groeneveld, Cornelis

Shanshin, Valery Yurevich

4th Comm., Kuybysiev-400 JT, 1985

2brN2b/B7/7R/5pK1/2P1kP2/3p4/4N1P1/1B5n

#2

9 + 7

102 Probleemblad 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sxd6#
    • 1...Bd7
      • 2.Sd6#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bf6+
      • 2.Sxf6#
    • 1...Sf2
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
  • Tries
    • 1.Rd6?
      • threat
        • 2.Bxd3#
      • 1...Bf6+
        • 2.Sxf6#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Sf2
        • 2.Sg3#
      • 1...Bd4!
    • 1.Re6+?
      • 1...Be5
        • 2.Sc3#
        • 2.Sf6#
        • 2.Rxe5#
      • 1...Bxe6!
    • 1.Rf6?
      • threat
        • 2.Sc3#
      • 1...Bxf6+
        • 2.Sxf6#
      • 1...Rd4!
    • 1.Rxh8?
      • threat
        • 2.Sc3#
        • 2.Sf6#
      • 1...Rxe8
        • 2.Sc3#
      • 1...Rd6
        • 2.Sc3#
        • 2.Sxd6#
      • 1...Rd4!
  • Keys
    • 1.Rh3!
      • threat
        • 2.Re3#
      • 1...Bf6+
        • 2.Sxf6#
      • 1...Rd4
        • 2.Sc3#
      • 1...Bd4
        • 2.Bxd3#
      • 1...Sg3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::S(I),XR(f)
    • B(e);S_CUTR(f)::S(I)
    • B(g);N_GUARD::S(B),XB(g)
    • B(g);CHECK,N_GUARD::S(I),XB(g)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
  • Tries
    • Try
      • R(G);
      • Threat
        • B(A),XP(b)
      • Vars
        • B(g);CHECK,N_GUARD::S(I),XB(g)
        • R(f);XR(G)::S(I),XR(f)
        • S(a);N_GUARD::S(B)
      • Refutation
        • B(g);
    • Try
      • R(G);CHECK
      • Refutation
        • B(e);XR(G)
    • Try
      • R(G);
      • Threat
        • S(B)
      • Vars
        • B(g);CHECK,XR(G)::S(I),XB(g)
      • Refutation
        • R(f);
    • Try
      • R(G);XB(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XS(I)::S(B)
      • Refutation
        • R(f);
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • B(g);CHECK,N_GUARD::S(I),XB(g)
      • R(f);S_CUTB(g)::S(B)
      • B(g);S_CUTR(f)::B(A),XP(b)
      • S(a);N_GUARD::S(B),XS(a)
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